circle

Related Questions

• The radical centre of the circles ${{x}^{2}}+{{y}^{2}}+4x+6y=19,{{x}^{2}}+{{y}^{2}}=9$ and ${{x}^{2}}+{{y}^{2}}-2x-2y=5$ will be

  ---

• The two circles ${{x}^{2}}+{{y}^{2}}-2x+22y+5=0$ and ${{x}^{2}}+{{y}^{2}}+14x+6y+k=0$ intersect orthogonally provided k is equal to

  ---

• In the co-axial system of circle ${{x}^{2}}+{{y}^{2}}+2gx+c=0$ , where g is a parameter, if $c>0$ then the circles are

  ---

• The equations of the circles touching both the axes and passing through the point (1, 2) are

  ---

• The length of the tangent from the point (4, 5)to the circle ${{x}^{2}}+{{y}^{2}}+2x-6y=6$ is

  ---